For an early 90 bike , they probably would build as a light bike , so the ride must be good , but they are rare , have a good history and very bling .
late 91/ early 92 19in bare frame weighs 3.2lb. 93 they had a slight overhaul with shorter, more tapered lugs & apparently lighter carbon tubeset. rumoured weight for 18in is 2.6lb.
Neds 1990 world champs winning frame had a custom carbon tubeset that cost nearly $8K (in 1990!) that frame weighed 2.2lb, but was built soley for that race.
theres a bloke on mtbr.com with the proto type ultimate FS. yup, essentially an early FSR made in a ti lug carbon style, tho I've yet to see pics
WTD- Shimano M980 XTR Rear Derailleur